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Simplest Form Fractions Worksheet

Fractions lesson 8: Simplest form of a fraction · Set 940 · 40 questions
TalentJR

The method (Divide by the HCF): Find the HCF (highest common factor) of the top and the bottom. Divide the top and the bottom by the HCF. If the HCF is 1, the fraction is already in its simplest form.

NameDateTime takenScore ___ / 40
  1. 1.What is the HCF of 21 and 27?
  2. 2.Write 63/81 in its simplest form. =
  3. 3.Write 30/35 in its simplest form. =
  4. 4.Write 49/63 in its simplest form. =
  5. 5.Write 7/49 in its simplest form. =
  6. 6.Is 9/12 in its simplest form? (a) No (b) Yes
  7. 7.Write 18/27 in its simplest form. =
  8. 8.What is the HCF of 9 and 27?
  9. 9.What is the HCF of 12 and 20?
  10. 10.Write 72/81 in its simplest form. =
  11. 11.Write 40/45 in its simplest form. =
  12. 12.Write 14/35 in its simplest form. =
  13. 13.Write 32/40 in its simplest form. =
  14. 14.Write 12/30 in its simplest form. =
  15. 15.Is 3/4 in its simplest form? (a) Yes (b) No
  16. 16.Write 18/24 in its simplest form. =
  17. 17.What is the HCF of 16 and 40?
  18. 18.Is 1/4 in its simplest form? (a) Yes (b) No
  19. 19.Write 49/70 in its simplest form. =
  20. 20.Write 16/20 in its simplest form. =
  21. 21.Is 1/9 in its simplest form? (a) Yes (b) No
  22. 22.Is 14/18 in its simplest form? (a) No (b) Yes
  23. 23.What is the HCF of 8 and 16?
  24. 24.Is 30/48 in its simplest form? (a) Yes (b) No
  25. 25.Write 5/10 in its simplest form. =
  26. 26.Write 8/40 in its simplest form. =
  27. 27.Write 27/72 in its simplest form. =
  28. 28.Write 9/45 in its simplest form. =
  29. 29.Is 4/7 in its simplest form? (a) No (b) Yes
  30. 30.Write 3/6 in its simplest form. =
  31. 31.Write 6/24 in its simplest form. =
  32. 32.What is the HCF of 6 and 36?
  33. 33.What is the HCF of 24 and 27?
  34. 34.Write 24/42 in its simplest form. =
  35. 35.Write 21/30 in its simplest form. =
  36. 36.Is 5/10 in its simplest form? (a) Yes (b) No
  37. 37.Is 2/12 in its simplest form? (a) No (b) Yes
  38. 38.Is 3/7 in its simplest form? (a) No (b) Yes
  39. 39.Write 8/24 in its simplest form. =
  40. 40.Write 3/9 in its simplest form. =

Answer key

  1. 3
  2. 7/9
  3. 6/7
  4. 7/9
  5. 1/7
  6. No
  7. 2/3
  8. 9
  9. 4
  10. 8/9
  11. 8/9
  12. 2/5
  13. 4/5
  14. 2/5
  15. Yes
  16. 3/4
  17. 8
  18. Yes
  19. 7/10
  20. 4/5
  21. Yes
  22. No
  23. 8
  24. No
  25. 1/2
  26. 1/5
  27. 3/8
  28. 1/5
  29. Yes
  30. 1/2
  31. 1/4
  32. 6
  33. 3
  34. 4/7
  35. 7/10
  36. No
  37. No
  38. Yes
  39. 1/3
  40. 1/3

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